Chimney



2 Sheets-Sheet 1.

(N0 Model.)

L. E. GLAWSON.

UHIMNEY.

N4 PETERS Yhnlolinmgrdpller. Wnihingmn. D.C.

` (No Model.) 2 Sheew--Sheety 2.

Lf E. GLAWSON. GHI'MNBY.

10.249,308. Patented N0v.8 ,1881,

UNITED STATES PATENT OFFICE6 LEONARD` E. LAWsON, OF sAN FRANCISCO, CALIFORNIA.

CHllvNEY.

SPECIFICATION forming part of Letters Patent No. 249,808, dated November 8, 1881.

' Application mea August 11,1381. (No model.)

To all whom tt mag/'concern Be it known that- I, LEONARD E. GLAWSON, of' the city and county of San Francisco, State of California, have invented an Improved Chimney; and I do hereby declare the following to be a full, clear, andexact description thereof.

My invention `relates to certain improvements in Chimneys of that class in which an interior line is employed for the purpose of conducting away thesnloke and gases, and an exterior casing may surround this interior flue, either with or without a filling between the two of plaster-of-paris or fire-clay,for the pur. pose of safety.

It consists in building a chimney in sections of earthen'ware tube, which are supported upon a suitable base provided witha slide, through which any accumulations may be removed from time to time, `and in colnbination with such a sectional chimney a series of lianges so constructedias to unite the sections and at the same time provide independent supports for the chimney at intervals.

Referring to the accompanying drawings for a more complete explanation of my invention,

AFigure 1 is a side elevation of my chimney. Fig. 2 is a vertical section.

Fig. 3 is a view ot' the base. Fig. 4 is a viewof one of the ringbrackets. 'V

AAare sections ot'earthenware tubes, which may be of any suitable or desired shape, and

which have their ends fitted so as to `be united to form any required length for the chimney.

Outside these sections is a longer inclosing tube or casing, B, of sheet metal, which surrounds the inner one, and is also made in sections. The space between the two tubes may be left open for acirculation of air; or, if prewith plaster-of-paris or shown at-H, to hold the central tube in position, and also to support the sections A, which are formed with flanges L, to rest upon these lugs.

In order to support the chimney at intervals and to relieve the base and the lower sections of too much weight, I form projecting brackets 1, which are secured to the rings F, and may be fastened to a wall or other support near the chimney, so that each bracket may support that portion of thechimney between it and the one next aboveV by means of the lugs H and the flanges L on the interior sections, as before described. By this construction the strain upon the chimneyis divided and relieved.

The base-plate G has a central opening, J, through which all accumulationsof ashes or soot may be easily removed, and a slide, K, closes the opening when not in use.

When a chimneyof this kind is built upon an elevated support out of doors it is only necessary to withdraw this slide and allow the-contents to fallout, and there will be an opening entirely through, so that the chimney may be readily cleaned.

The lianges Gr upon the rings F prevent the outer tube or` casing from being collapsed or pressed inward, as they itinside the casing, and thus hold it rigidly in place.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is n 1. In a sectional chimney consisting of an outer and inner wall or Casin g, the rings F, having the flanges Gr, fitting into the outer` sheet-- metal casing-sections, so as to unite them and prevent collapse, substantially as herein dcscribed.

2. In a sectional chimney,the rings F, having inwardly-projecting lugs H,in combination with the chimney-sections A, with the projecting flanges L, substantially as and forthe purpose herein described.

3. In a chimney composed of sections A, and having the projections or flanges L, the rings F, with supporting-lugs H, and the bracketsV I, by which the sections may be supported independentl y, substantially as herein described.

4. In a sectional chimney composed of an inner tube, A, and an outer casing, B, the rings F, with their flanges Gr, lugs H, and brackets IOO I, substantially as and fo'ijthe puiposefhelfein described.

5. In a sectional chimney cOnipOs'ed Offan yinner tube and an Outer casing, as shown, the

In witness whereof I have .hereunto set my hemd.l

` LEONARD E. .OLAWsON Witnesses:

4S. H. NOURSE,

FRANK A. BROOKS. 

